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Round|Lab Grown|IGI

1.58ct G SI1 Round Lab Grown Diamond

ID • G/SI1 • IGI LG825658780

Shape and cutting style on the report: Round brilliant

Certificate IGI LG825658780

Diamond specifications and retailer prices

From €179 EUR
$200 USD
As of October 29, 2026
Save €863 EUR (83%) vs most expensive(unlock to see where)
14 retailers carry this diamond
Most expensive: €1,042 EUR at MOH London · As of October 29, 2026
View at MOH London

About this 1.58ct lab-grown round diamond

This 1.58ct lab-grown round sits in the one-and-a-half to two carat band, graded G colour (near-colourless) and SI1 clarity (slightly-included), with a top-tier cut grade and certified by IGI LG825658780 or 825658780. Listed at 14 retailers as of October 29, 2026, with prices from €179 to €1,042, a €863 spread on the same certified stone. MOH London lists it at €1,042. SI-grade stones are eye-clean roughly 60 to 70% of the time at this carat range. Check the inclusion plot on the cert and ask the retailer for high-resolution video before buying.

The 4Cs

1.58
Carat
G
Color
SI1
Clarity
Ideal
Cut

Specifications

CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.2°
Pavilion angle40.5°
OriginLab Grown
Grading LabIGI
CertificateIGI LG825658780
Dimensions7.53 × 7.47 × 4.58 mm
L/W Ratio1.01
Girdle conditionFaceted
Cert comments
This Laboratory Grown Diamond was created by Chemical Vapor Deposition (CVD) growth process Type IIa
Top View
7.53 mm7.47 mm1.58 ctG / SI1
OriginLab Grown
CutIdeal
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateIGI LG825658780
Side View
Table 57.0%Crown 35.2°Girdle: THN-MEDPavilion 40.5°Culet: NoneDepth 61.1%

Caratlytics Score

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A
Excellent
Excellent quality and great value
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See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 29
Current: €1,042 EUR|Low: €179 EUR|High: €1,049 EUR|Avg: €549 EUR|+0.5%
MOH London
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
November 1, 2026
Retailer 7€179 EUR
Retailer 9€222 EUR
Retailer 4€370 EUR
Retailer 10€386 EUR
Retailer 2€402 EUR
Retailer 11€439 EUR
Retailer 6€573 EUR
Retailer 5€640 EUR
Retailer 3€761 EUR
Retailer 8€806 EUR
MOH London€1,042 EUR

43 data points across 11 retailers

14 retailers€179 EUR to €1,042 EUR

A
Cheapest Retailer
-
€179 EUR
$200 USD
A
Retailer 2
-
€208 EUR
$232 USD
View
A
Retailer 3
-
€222 EUR
$248 USD
View
A
Retailer 4
-
€222 EUR
$248 USD
View
A
Retailer 5
-
€370 EUR
View
B+
Retailer 6
-
€386 EUR
$431 USD
View
A
Retailer 7
-
€402 EUR
£354 GBP
View
A
Retailer 8
-
€439 EUR
$491 USD
View
B+
Retailer 9
-
€573 EUR
$640 USD
View
B+
Retailer 10
-
€640 EUR
$715 USD
View
B+
Retailer 11
-
€712 EUR
$796 USD
View
B
Retailer 12
-
€761 EUR
$850 USD
View
B
Retailer 13
-
€806 EUR
$900 USD
View
Most Expensive
B
MOH London
LG825658780 · Oct 29
€1,042 EUR
£917 GBP
View
13 more retailers have this diamond
Prices start from €179 EURSave up to €863 EUR

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.58ct Round
€179 EUR